CN110106761B

CN110106761B - Simple cement pavement and preparation method thereof

Info

Publication number: CN110106761B
Application number: CN201910406005.7A
Authority: CN
Inventors: 倪凌啸
Original assignee: Jiangsu Yonghui Environmental Technology Co ltd
Current assignee: Jiangsu Yonghui Environmental Technology Co ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2021-07-27
Anticipated expiration: 2039-05-16
Also published as: CN110106761A

Abstract

The invention discloses a simple cement sidewalk and a preparation method thereof, and belongs to the technical field of road construction. The invention provides a novel fiber grid, which comprises a plurality of grid single bodies, wherein each grid single body comprises a fiber net bag and a grid single body support, each grid single body support is square, each fiber net bag is arranged on each grid single body support and is in a bag shape, an included angle between each fiber net bag and a horizontal line is 30-60 degrees, and the grid single bodies are connected through the grid single body supports; the cement pavement can be obtained by putting the cement into a fiber net bag, spraying water and airing. The cement pavement of the invention has the advantages of convenient use, rapid solidification and molding, environmental friendliness and flexible application, and the prepared cement pavement has strong bearing capacity and can be widely applied to road engineering, slope protection and other aspects.

Description

Simple cement pavement and preparation method thereof

Technical Field

The invention relates to a simple cement sidewalk and a preparation method thereof, belonging to the technical field of road construction.

Background

When a park is laid or agricultural facilities are installed in a farmland, constructors inevitably enter the soil, and particularly, the soil is muddy after rainy weather, which seriously affects the progress of construction. In addition, soil layers in some beach areas are soft, so that personnel passing and simple material carrying are not facilitated. Therefore, pedestrian pavements are often laid on corresponding construction sites, and such traffic pavements are not subjected to large traffic loads, generally only allow pedestrians and non-motor vehicles to pass through, and have the characteristics of temporary and intermittent use in consideration of construction periodicity or seasonal problems.

In the prior art, reinforced concrete is generally adopted for hardening to build the pedestrian walkways, the construction cost of the walkways is high, and the construction time is long; in addition, such walkways are generally temporary, and when they are to be dismantled, they are inconvenient and require a lot of time and cost because they have considerable structural strength and require large dismantling machines to be dismantled. At present, also have the pedestrian's pavement of laying building rubbish such as brick sediment in actual construction, save raw materials, but the water resistance of this type of pavement is poor, once meet water, road surface bearing capacity sharply descends, for satisfying follow-up construction needs, often will maintain repeatedly, waste time and energy to cost increase when causing the later stage to clear the yard.

Therefore, a pedestrian access road which is simple, low in cost, good in water resistance, easy to detach and easy to temporarily construct needs to be found.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a simple cement sidewalk and a preparation method thereof, the cement sidewalk can be obtained by only spraying water on paved cement grids, the construction is convenient, the bearing capacity is high, the weight of 150 kilograms can be borne, and the disassembly is convenient.

Firstly, the invention provides a preparation method of a cement sidewalk, which comprises the following steps:

(1) cutting or splicing a fiber mesh according to construction requirements to obtain corresponding sizes, wherein the fiber mesh comprises a plurality of mesh single bodies, each mesh single body comprises a fiber net bag and a mesh single body support, each mesh single body support is square, the fiber net bag is arranged on each mesh single body support and is in a bag shape, an included angle between the fiber net bag and a horizontal line is 30-60 degrees, and the mesh single bodies are connected through the mesh single body supports;

(2) and (3) putting the cement into a fiber net bag, spraying water according to the mass ratio of 1-2: 1, and airing to obtain the cement sidewalk.

In one embodiment of the present invention, the fiber net bag is made of PP fiber yarns, the diameter of the PP fiber yarns is 0.1 to 1.0mm, and the pore diameter of the fiber net bag is 1 to 100 μm.

In one embodiment of the present invention, the thickness of the fiber net bag is 10 to 20mm, and the height thereof is 3 to 20 cm.

In one embodiment of the invention, the fiber net bag is pocket-shaped, can contain more cement, and has an included angle of 30-60 degrees with a horizontal line, so that the prepared net bags between the cement sidewalks are mutually overlapped, pressure can be mutually transmitted, and the bearing capacity of the cement sidewalks is enhanced.

In an embodiment of the present invention, the material of the grid single-piece scaffold is plastic.

In one embodiment of the present invention, the combination manner of the fiber net bag and the grid cell support is pressing, that is, the PP fiber yarns are pressed on the grid cell support by high pressure.

In one embodiment of the invention, the grid cell support is square or rectangular with a side length of no more than 10 cm.

In one embodiment of the present invention, in order to reduce costs, the cement is general purpose cement, i.e., any one of portland cement, ordinary portland cement, portland slag cement, pozzolanic portland cement, portland fly ash cement, or composite portland cement.

In one embodiment of the present invention, waterproof, flame retardant and other materials can be added to the cement to achieve better waterproof or flame retardant effect.

In one embodiment of the present invention, in the step (2), cement is added to the fiber net bag to make it as flat as possible.

Secondly, the invention provides the cement pavement prepared by the preparation method.

Finally, the invention also provides the application of the cement sidewalk, and the cement sidewalk can be used as a pedestrian sidewalk for park construction, and can also be used as protection of revetments, or a pedestrian sidewalk on a mudflat land and the like.

The invention has the following beneficial technical effects:

(1) the cement pavement of the invention has the advantages of convenient use, rapid solidification and molding, environmental friendliness and flexible application, and can be widely applied to road engineering, slope protection and other aspects.

(2) The cement pavement prepared by the method has strong bearing capacity, and the strength can reach 600 kPa; the grid single body support is made of plastic materials, but can play a role of reinforced concrete, can bear 300 kilograms of force in a cement pavement, can be used daily without using expensive materials such as reinforcing steel bars and the like, and greatly reduces the cost;

(3) the cement access way can be cut or spliced into different shapes or sizes according to actual conditions, and is more convenient to use.

(4) The fiber mesh disclosed by the invention is simple in preparation method and low in cost, can be arranged into a roll shape, is only 10kg in weight per square meter, and is easy to transport; has better toughness, and can change the shape according to the requirement of a laying place, such as the laying of a groove and the like.

(5) The cement sidewalk is only 100mm thick at the maximum, the cement sidewalk can be detached only by smashing the cement, the smashed cement is still remained in the net bag generally, a large amount of subsequent clearing work is not needed, and the cement sidewalk is more environment-friendly.

Drawings

FIG. 1 is a schematic top view of a fiber mesh for a cement pavement of the present invention.

FIG. 2 is a schematic sectional front view of the cement pavement of the present invention.

FIG. 3 is a schematic view of a mesh unit of the cement pavement of the present invention.

In the figure, 1-grid single bracket, 2-grid single body, 3-fiber net bag and 4-cement.

Detailed Description

The method for measuring the strength of the cement pavement comprises the following steps: the current long test regulations for highway subgrade and pavement.

Example 1

The fiber grid of the embodiment comprises a plurality of grid single bodies, each grid single body comprises a fiber net bag and a grid single body support, each grid single body support is square, each fiber net bag is arranged on each grid single body support and is in a bag shape, an included angle between each fiber net bag and a horizontal line is 40 degrees, and the grid single bodies are connected through the grid single body supports; the diameter of the PP fiber yarn is 0.2mm, and the aperture of the fiber net bag is 1-100 mu m. The thickness of the fiber net bag is 10mm, the height of the fiber net bag is 5cm, the grid single support is square or rectangular, and the size of the grid single support is 30mm multiplied by 30 mm.

Cutting or splicing the fiber grids according to the construction requirements to obtain the corresponding size of 1m multiplied by 100m, putting the Portland cement into a fiber net bag, spraying water according to the mass ratio of 1:1, and airing to obtain the cement sidewalk.

The strength of the cement pavement can be measured, and the cement pavement can be found to bear the strength of 594 kPa.

Example 2

The fiber grid of the embodiment comprises a plurality of grid single bodies, each grid single body comprises a fiber net bag and a grid single body support, each grid single body support is square, each fiber net bag is arranged on each grid single body support and is in a bag shape, an included angle between each fiber net bag and a horizontal line is 60 degrees, and the grid single bodies are connected through the grid single body supports; the diameter of the PP fiber yarn is 0.2mm, and the aperture of the fiber net bag is 1-100 mu m. The thickness of the fiber net bag is 10mm, the height of the fiber net bag is 5cm, the grid single support is square or rectangular, and the size of the grid single support is 30mm multiplied by 30 mm.

The strength of the cement pavement can be measured, and the cement pavement can be found to bear the strength of 562 kPa.

Example 3

The fiber grid of the embodiment comprises a plurality of grid single bodies, each grid single body comprises a fiber net bag and a grid single body support, each grid single body support is square, each fiber net bag is arranged on each grid single body support and is in a bag shape, an included angle between each fiber net bag and a horizontal line is 40 degrees, and the grid single bodies are connected through the grid single body supports; the diameter of the PP fiber yarn is 0.5mm, and the aperture of the fiber net bag is 1-100 mu m. The thickness of the fiber net bag is 20mm, the height of the fiber net bag is 7cm, the grid single support is square or rectangular, and the size of the grid single support is 60mm multiplied by 60 mm.

Cutting or splicing the fiber grids according to the construction requirements to obtain the corresponding size of 1m multiplied by 100m, putting the Portland cement into a fiber net bag, spraying water according to the mass ratio of 2:1, and airing to obtain the cement sidewalk.

The strength of the cement pavement can be measured, and the cement pavement can be found to bear the strength of 538 kPa.

Comparative example 1

How does the prepared cement pavement bear the ability when a condition is outside the scope of the present invention?

For example:

(1) when no plastic support is arranged, certain cement is directly laid in the fiber net, the diameter of the PP fiber is 0.2mm, the aperture of the fiber net is 1-100 mu m, the thickness of the fiber net is 10mm, and the strength which can be borne by the prepared cement pavement is only 213 kPa;

(2) when the material of the fiber net bag is not PP fiber yarn but PP fiber cloth, the thickness is 1mm, and the strength which can be borne by the prepared cement sidewalk is only 396 kPa;

(3) when the included angle between the fiber net bag and the horizontal plane is 20 degrees, the rest of the operation parameters are the same as the operation parameters in the example 1, and the strength which can be born by the prepared cement pavement is 425 kPa.

(4) When the included angle between the fiber net bag and the horizontal plane is 70 degrees, the rest of the operation parameters are the same as the example 1, and the strength which can be born by the prepared cement sidewalk is 402 kPa.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The preparation method of the cement sidewalk is characterized by comprising the following steps of:

(2) putting cement into a fiber net bag, and mixing the cement with water according to the mass ratio of 1-2: 1, spraying water, and airing to obtain a cement sidewalk;

the fiber net bag is made of PP fiber yarns, the diameter of each PP fiber yarn is 0.1-1.0 mm, and the pore diameter of the fiber net bag is 1-100 mu m.

2. The preparation method of the cement sidewalk according to claim 1, wherein the thickness of the fiber net bag is 10-20 mm, and the height of the fiber net bag is 3-20 cm.

3. The method for preparing a cement sidewalk according to claim 1 or 2, wherein the material of the grid single bracket is plastic.

4. The method for preparing a cement pavement according to claim 1 or 2, wherein the grid single-body scaffold is square or rectangular.

5. The method for preparing a cement sidewalk according to claim 3, wherein the grid single-body scaffold is square or rectangular.

6. A method for preparing a cement pavement according to any one of claims 1, 2 or 5, wherein the cement is a general purpose cement including any one of portland cement, ordinary portland cement, portland slag cement, portland pozzolanic cement, portland fly ash cement, or composite portland cement.

7. The method of claim 3, wherein the cement is a general purpose cement comprising any one of portland cement, ordinary portland cement, portland slag cement, pozzolanic portland cement, portland fly ash cement, or composite portland cement.

8. The method of claim 4, wherein the cement is a general purpose cement, and comprises any one of portland cement, ordinary portland cement, portland slag cement, pozzolanic portland cement, portland fly ash cement, or composite portland cement.

9. The cement pavement prepared by the method according to any one of claims 1 to 8.

10. Roadway equipment comprising the cement pavement of claim 9.

11. The use of the cement pavement according to claim 9 in the fields of road engineering, slope protection, road protection, and ditch protection.